"Everything is metal in here, and a dog could easily get his tooth caught in one of these grates here and rip his tooth out and cause severe dental trauma to get at one of these people that is harassing him," Hayes said.

It's also dangerous to person doing the harassing.

"If the door was actually left unlocked or something, and a drunk individual or an intoxicated individual opens the door, he has a very good likelihood of getting bit," Hayes said.